Automatic PTT method based on vocoding voice of data link of unmanned aerial vehicle

The invention discloses an automatic PTT (Push To Talk) method based on unmanned aerial vehicle data link vocoding voice, which belongs to the field of unmanned aerial vehicle voice communication and comprises the following steps: S1, acquiring voice data; s2, converting the collected voice data into recognizable standard digital voice, and performing caching and subsequent processing; s3, if the threshold judgment module passes, an automatic PTT signal is triggered, PTT is set to be valid, voice data coding is started at the same time, digital voice data before the set time in the cache are inquired and obtained, and after digital voice is converted into digital voice, uplink voice data coding is completed together with valid information; and S4, after the voice is transmitted to the airborne radio station of the unmanned aerial vehicle through the wireless data link for corresponding processing, FM/AM voice is sent through a radio station antenna, and a call is completed. According to the invention, the ope